The source of color in diamonds was the topic of Rapaport’s latest GEMTalks episode, which featured two experts from the Gemological Institute of America (GIA).
Dr. Ulrika D’Haenens-Johansson, senior manager of diamond research at the Gemological Institute of America (GIA), and Dr. Sally Eaton-Magaña, the institute’s senior manager of diamond identification, joined Rapaport’s Joshua Freedman to discuss how defects can have a major impact on value.
Dr. D’Haenens-Johansson and Dr. Sally Eaton-Magaña gave a presentation on the latest research in the field, explaining how distortions or trace elements in diamond lattices can turn a diamond yellow, pink, blue or green. They also outlined how the GIA’s grading for colored diamonds differs from the system for D to Z goods, provided data on submissions of different colors to its labs, and answered the audience’s questions.
Entitled “Understanding the Chemical and Physical Features of Colored Diamonds,” the LinkedIn Live session — sponsored by the GIA — also addressed the phenomena of treatments and lab-grown stones.
Watch the video of the episode here:
This episode of the GEMTalks LinkedIn Live is brought to you by GIA — the Gemological Institute of America — protecting consumers and supporting the global gem and jewelry trade since 1931 through research, education and laboratory services.
